What does 1 Kings 21:15 mean?

As soon as Jezebel heard that Naboth was dead, she told Ahab, 'Get up and take possession of Naboth’s vineyard. He’s not alive anymore—he’s dead.' 1 Kings 21:15 - Modern Text Bible

(Jezebel wastes no time, telling Ahab to go claim the vineyard now that Naboth is out of the way.)